Musical-instrument tempo-controller.



R. A...GALLY.

MUSICAL INSTRUMENT TEMPO GONTROLLER.

APPLICATION FILED SEPT. 9, 1912.

1,1 01,626, Patented June 30,1914.

x I nve n+0 v": $4?

wi'f'nesses UNITED STATES P'ii EN ll @FFTCE.

ROBERT A. GALLY, OF CINCINNATI, OHIO, ASSIGNOR TO THE BALDXVIN COMPANY,OF CINCINNATI, OHIO.

MUSICAL-INSTRUMENT TEMPO-CONTROLLER.

Specification of Letters Patent.

Patented June 30. 1914..

Application filed September 9, 1912. Serial No. 719,311.

To all whom it may concern:

Be it known that 1, ROBERT A. GALLY, a citizen ofthe United States,residing at Cincinnati, in the county of Hamilton, State of Ohio, haveinvented a certain new and useful Improvement in Musical-InstrumentTempo Gontrollers, of which the following is a specification.

Former devices for two manual controls of the tempo controlling means ofa selfplaying musical instrument have been of two types, each with themain control varying the quantity of air for the different speeds ofmotor, the secondary control of one type beingeffected by varying theten sion of the air service to the tempo port, the other type effectingthe secondary control by modifying the quantity ofair served to themotor.

The present invention relates to the second'type, quantity control byboth primary and secondary control means, the tension of the airserviceto the tempo port not being affected, all this being effected bysimplified and improved means as now set forth.

In thedrawings Figure 1 is a plan view of a tempo-box with its topremoved to show the valves; Figs. 2, 3, 4L, and 5 are front views withthe front cover removed to show the valves in their various positionsfor the several different ways of speed control; and.

Fig. 6 a sectional view of accelerator valve from left end of box.

The tempo box 1 shows a governor chamber 2 having agovernor valve 3 foreffecting an even tension air supply to the tempo ports 4Yand'5. p Thegovernor pneumatic other customary parts of a tension governing deviceare not shown, but are understood to be provided in any suitable manner,and might be at a distant point, and so also might the governor valveand chamber. The present: invention relates to the quantity controlofair for determining the speed of a wind motor which propels the musicspools and sheet of-a self-playing musical instrument, which motor maybe connected by conduotingmeans attached to port 6 of the box- 1.. Theparticular position of the governor valve and chamber, in the rerollva1ve7, and the general shape of the box 1 and spring and are shown andclaimed in my separate application No. 718,853.

The ports 4: and S are understood to be connected to the air, tensionproducing means. which is usually of varying tension. If of eventension, the 001111 ction might. be direct from such air tensionproducing means to the tempo port 9.

A tempo valve 10 has its position above tempo port 9, and is movablefrom its closed position over said port as in Figs. 1 and 2. to an openposition as in Figs. 3, t and 5; Such motion is effected by a valve wire11 suitablv connected to any manual control means.

A rocker 12 is connected by an arm 13 to any suitable. manual controlmeans adapted for effecting a secondary or modifying control of tempo.To this rocker 12 are connected a trailer valve 14 and an acceleratorvalve 15., and the tempo valve 10 may also be guided thereby. Theguidance of the tempo-valve 10 on rocker 12 is here shown as by thevalve 10 having a recess or groove 10 lengthwise thereof. the front ofsaid recess being closed by guards or clips 1.0 This groove 10 is ofsufficient height to per- -mit the rise of rocker 12 when liftingaccelerator valve 15, and at. the same time retain the valve 10 inguidance on said rocker 12. the bottom of said groove 10 beingsufficiently below the rocker 12 at normal position to allow thedepression of the rocker when lowering trailer valve l t. The trailervalve 14'. is guided on rocker 12 by a groove l-tin the front of thevalve 14-, the front of thegroovc being closed by guards or clips 14 andthe height of the groove neatly fitting rocker 12 so that the trailervalve 11 will. always travel with said rocker 12. The trailer- *alve 1+.is normally above the seat in which is the tempo port 9. as in Figs. 2and 3. and is held against the rear end of the tempo valve 10 by meansof a spring 16 engaging both valves and pulliug them together vetallowing an up and down mot on of the trailer valve 14 by operation ofthe rocker 12 without disturbing the-seating of the tempo valve. 10.which is aided to its seat by a spring 17. lVhcn the valve 10 is movedby wire 11 and its manual control so as to open tempo port 9 as in Fig.3, the downward operation of the rocker 12 by arm 13 and its manualcontrol as in Fig. 4, will partly or wholly close whatever of tempo port9 has been opened by tempo valve 10 and its controlling connections,thus slowing or entirely stopping the motor from the speed set by themanual control of tempo valve 10.

The accelerator-valve 15 is guided at its front on rocker 12 by a groove15 in the front of valve 15, the front of the groove 15 being closed bya guard or clip 15", the top of said groove 15 being closely adjacentrocker 12 when latter is in normal position, and the bottom of saidgroove 15 being sufficiently below said rocker 12 when in normalposition to allow the depression, of the rocker when loweringtrailer-valve 14. The

one side of the trailer-valve 15 is uided against the arm of the rocker12 ateft of said valve 15, and at the other side of said valve, 15 by aguide-pin 19 driven into, a solid part of the box. The accelerator valve15 lies normally closed over the accelerator port- 5, but an upwardoperation of rocker 12 by arm 13 and its manual control will raise thisaccelerator valve 15 and allow air to flow through its port 5 to actuatethe motor, either by port 5 alone if tempo valve 10 is closed over port9, or to increase the motor speed set by thektempo valve 10 if that isalready open, In the latter case, the raise ing of the trailer valve 14above its normal distance above port 9 will free that. ort 9 of some ofthe air friction caused by ts position over'that port 9, and by thatmeans also add to the speed of the motor.

The accelerator port 5 is placed well to the rear of the acceleratorvalve 15, so that the raising of its front end by rocker 12 is greatlyreduced in its amount of motion over port 5, thus enabling a verygradual and accurate control of the speed increase by this means.

To prevent accidental straining or displacement of the spring 16 shouldthe operator move the tempo-wire 11 and tempovalve 10 in the directionaway fromthe trailer-valve 14 while pressing down rocker strap 18 isattached to both valves 10 and 14, with sutlicient distance between theattaching points to allow the free raising and lowering of trailer-valve14. For economy of space, the trailer-valve 14 is allowed to travelpartly beyond the seat over which it travels, and over the reroll 'valve7, with space enough between the two valves 14' and 7 to allow theraising of valve 7 without interfering with valve 14.

.I do not broadly claim a secondary aircontrol of the tempo of a motorpropulsion of a music-sheet, such being very old in the patent to M.Gally, #346,152, July 27, 1886; nor do I broadly claim a secondarycontrol 12 and trailer-valve 14, a safetv' an extra accelerator closed.accelerator valve thereto, a rocker by quantity, that being a feature ofsaid M. Gally patent; nor do I claim or limit myself to the combinationof my devices with a tension governor, as a tension governor is alsoequally old in this art, bein included and claimed in a division of saidM. Gally patent, dated Oct. 19, 1886, and numbered 351,172; nor do Ilimit myself to the use of my invention with a tension governor, orwithout-a tension governor, both manners of using music-sheet motorsbeing old, and either manner of air-service being adaptable to m deviceaccording to the particular relate conditions of the general structurewith which it is used; also:

Various modifications may be made and yet be subject to what I claim asmy inye'ntion.

Claims: 1

1. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said port, a tem o-control means tosaidtempo-valve adapte to effect said travel, port and normally meansengaging said accelerator valve, and means to move said rocker and raisesaid accelerator valve, the tempo-valve being guided on said rocker.

In a music self-player tempo device: a te1npo-port, a tempo-valve adated to travel over said port, a tempo-contro means to said tempo-valveadapted to effect said travel, an extra accelerator port and normally,closed accelerator 'valve thereto, a rocker means engaging saidaccelerator valve, and means to move said rocker and raise saidaccelerator valve, the rocker engaging said accelerator valve near itsone end and the accelerator port positioned underneath the other end ofsaid accelerator valve.

3. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said said tempo-valve adapted to effect saidtravel, an extra accelerator )ort and, normally closed accelerator va vethereto, a rocker means engaging said accelerator valve, and means tomove said rocker and raise said accelerator valve, valve contiguous toand traveling with said tempo valve and over, said tempo rt and meansfor holding said valves toget er, said trailer-valve engaging with saidrocker, and

depressible with said rocker.

4. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to port, a tempo-control means toand a trailertravel over saidport, a tempo-control means I to said tempo-valve adapted to effect saidtravel, an ezitra accelerator ort and normally closed accelerator va vethereto, a. rocker means engaging said accelerator valve, and means tomove said rocker and raise said accelerator valve, and a trailervalvecontiguous to and traveling with said tempo valve and over said tempoport and means for holding said valves together, said trailer-valveengaging with said rocker, and depressible with said rocker, the tempovalve being also guided on said rocker.

5. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said port, a tempo-control means to saidtempo-valve adapted to effect said travel, an extra accelerator port andnormally closed accelerator valve thereto, a trailervalve contiguous toand traveling with said tempo-valve and over said port, means forholding said two valves together, and a common means engaging both saidaccelerator valve and said trailer-valve and adapted to actuate both.

6. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said port, a tempo-control means to saidtempo-valve adapted to ellect said travel, an extra accelerator port andnormally closed accelerator valve thereto, a rocker means engaging saidaccelerator valve, and means to move said rocker and raise saidaccelerator valve, and a trailer-valve contiguous toand traveling withsaid tempo valve and over said tempo port and means for holding saidvalves together, said trailervalve engaging with said rocker, anddepressible with said rocker, the tempo valve being also guided on saidrocker, each said valve having a groove in which said rocker so engages,the groove in the trailervalve being a close fit to said rocker, and thegrooves of the tempo valve and the accelerator valve being said rocker,such excess being at two opposite sides of said rocker in said tempovalve and atone side of said rocker means in said accelerator valvesrespectively, when said rocker is in normal position.

7. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel 'over said port, a tempo-control means to saidtempo-valve adapted to effect said travel, an extra accelerator port andnormally closed accelerator valve thereto, a rocker means engagingsaidaccele-rator valve, and means to move saidrocker and raise saidaccelerator,

valve, and a trailer-valve contiguous to and traveling with said tempovalve and'over said tempo port and means for holding said valvestogether, said trailer-valve engaging with said rocker, and depressiblewith said rocker,

the tempo valve being also guided on said 'ocker, the trail er-valve andaccelerator valve each having agroove in which said rocker so engages,the .groove in the trailer-valve being a close fit to the rocker, andthe groove in the accelerator valve having an excess clearance from therocker in that partof said valve between said rocker and the'seatinsface of greater in size than rocker is in normal said accelerator valve,when said rocker is in normal position.

8. In a music self-player tempo device: a tempo-port, a. tempo-valveadapted to travel over said port, a tempo-control means to saidtempo-valve adapted to efiect said travel, an extra acceleratorport andnormally closed accelerator valve thereto, a trailer-valve contiguous toand traveling with said tempovalve and over said port, means for holdingsaid two valves together, and a common means engaging both saidaccelerator valve and said trailer-valve and adapted to actuate both,each said valve having a groove in which said means so engages, thegroove in the trailer-valve being a close fit to said means, and thegrooves of the tempo valve and the accelerator valve being greater insize than said means, such excess being at two opposite sides of saidmeans in said tempo valve and at one side of said means in saidaccelerator valve when said rocker is in normal position.

9. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said port, a tempo-control means to saidtempo-valve adapted to effect said travel, an extra accelerator port andnormally closed accelerator valve thereto, a trailer-valve contiguous toand traveling with said tempo valve and over said port, means forholding said two valves together, and a common means engaging both saidaccelerator vvalve and said trailer-valve and adapted to actuate both,the trailer valve and accelerator valve each having a groove in'whichsaid means so engages, the grooves in the trailer valve being a closefit to the means, and the groove in the accelerator valve having anexcess clearance from the means in that part of said valve between saidmeans and the seating face of said accelerator valve when said position.

10. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said port, a tempo-control means to saidtempo-valve adapted to efiect said travel, a trailer-valve contiguous toand traveling with said tempo valve and over said port, flexible meansfor holding the two said valves together during said travel, and asafety means engaging both said valves and having less yield than saidflexible means.

11. In a music self-player tempo device: a tempo-port, a tempo-valveadapted to travel over said port, a tempo-control means to saidtempo-valve adapted to efiect said travel, an extra accelerator port andnoraccelerator valve and said trailer-valve and adapted to actuate both,each 'said valve having a groove in Which said means so on gages, thegroove in the trailervalve being a close fit to said means, and thegrooves of the tempo valve and the accelerator Valve being greater- 111SlZ G than sa d means, th e groove 1n the tempo valve being greater insize than the groove in the accelerator valve.

tempo-valve adapte to effect said travel, an

1 extra accelerator port and normally closed accelerator valve thereto,and a common means engaging both said accelcratorwalve and tempowalve,and adapted to actuate said accelerator valve, each said valve havinggroove in Which said means engages, the groove in said tempo-valve beinggreater in size than in said accelerator valve.

ROBT. A. GALLY. \Vitn esses J. WV. MAoY, WM. Evans.

Cbpicl of 1:111! patent may be obtained for-five cents each, byaddressing the Commissioner of Patents.

" Washington, D. G."

